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clientv3/integration: Fix flaky TestGetTokenWithoutAuth (#12200)

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The test is vary flaky on Travis.

Seems that since (https://github.com/etcd-io/etcd/issues/7724) the
client is expected to simply ignore whether server is in AuthDisabled
mode even if the user supplies credentials.

The tests used to:
  * use very large cluster (10 nodes)
  * set very low timeout (1 sec)

Such setup led to frequent deadlineExceed errors or following failures:

    === RUN   TestGetTokenWithoutAuth
    {"level":"warn","ts":"2020-08-04T16:50:48.686+0200","caller":"clientv3/retry_interceptor.go:62","msg":"retrying of unary invoker failed","target":"endpoint://client-35573307-1ee5-441b-acc7-d073f0bd7de5/localhost:69820396562031027440","attempt":0,"error":"rpc error: code = Unavailable desc = etcdserver: leader changed"}
        user_test.go:151: other errors:etcdserver: leader changed
    --- FAIL: TestGetTokenWithoutAuth (10.91s)
This commit is contained in:
Piotr Tabor 2020-08-07 22:32:32 +02:00 committed by GitHub
parent f395f82a75
commit 9d182c2a70
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2 changed files with 10 additions and 6 deletions
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6
clientv3/client.go
View File

@ -337,7 +337,13 @@ func (c *Client) dial(target string, creds grpccredentials.TransportCredentials,
err = c.getToken(ctx)
if err != nil {
// TODO: Consider retrying transient errors like:
// "error":"rpc error: code = Unavailable desc = etcdserver: leader changed"
// Ignore rpctypes.ErrAuthNotEnabled error.
if toErr(ctx, err) != rpctypes.ErrAuthNotEnabled {
// This logic originates from 62d7bae496 and is not clear why we cannot just return err
// without looking into parent's context.
if err == ctx.Err() && ctx.Err() != c.ctx.Err() {
err = context.DeadlineExceeded
}

10
clientv3/integration/user_test.go
View File

@ -111,10 +111,11 @@ func authSetupRoot(t *testing.T, auth clientv3.Auth) {
}
}
// Client can connect to etcd even if they supply credentials and the server is in AuthDisable mode.
func TestGetTokenWithoutAuth(t *testing.T) {
defer testutil.AfterTest(t)
clus := integration.NewClusterV3(t, &integration.ClusterConfig{Size: 10})
clus := integration.NewClusterV3(t, &integration.ClusterConfig{Size: 2})
defer clus.Terminate(t)
authapi := clus.RandClient()
@ -130,7 +131,7 @@ func TestGetTokenWithoutAuth(t *testing.T) {
// "Username" and "Password" must be used
cfg := clientv3.Config{
Endpoints: authapi.Endpoints(),
DialTimeout: 1 * time.Second, // make sure all connection time of connect all endpoint must be more DialTimeout
DialTimeout: 5 * time.Second,
Username: "root",
Password: "123",
}
@ -142,13 +143,10 @@ func TestGetTokenWithoutAuth(t *testing.T) {
switch err {
case nil:
t.Log("passes as expected, but may be connection time less than DialTimeout")
t.Log("passes as expected")
case context.DeadlineExceeded:
t.Errorf("not expected result:%v with endpoint:%s", err, authapi.Endpoints())
case rpctypes.ErrAuthNotEnabled:
t.Logf("passes as expected:%v", err)
default:
t.Errorf("other errors:%v", err)
}
}